CN206555209U - Easy opened end cap for hydraulic jack - Google Patents
Easy opened end cap for hydraulic jack Download PDFInfo
- Publication number
- CN206555209U CN206555209U CN201720211625.1U CN201720211625U CN206555209U CN 206555209 U CN206555209 U CN 206555209U CN 201720211625 U CN201720211625 U CN 201720211625U CN 206555209 U CN206555209 U CN 206555209U
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- CN
- China
- Prior art keywords
- end cap
- ring
- cap body
- hydraulic jack
- sealed support
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of Easy opened end cap for hydraulic jack, including the end cap body being fixedly connected with cylinder body, the end cap body side offers annular seal space, laminating is provided with the sealed support for sealed cylinder in the annular seal space, the sealed support offer with cylinder body it is concentric and for piston rod fit through positioning chamber, the end cap body side is provided with the back-up ring for fit sealing support, the back-up ring external diameter is more than sealed support external diameter, and the back-up ring side is provided with by active force so that the retention mechanism that back-up ring is fastened with end cap body.Sealed support and back-up ring need to only be removed without whole end cap is removed, reach the technical difficulty of reduction maintenance and the purpose of heavy degree, achieved the beneficial effect of easy disassembly by the utility model.
Description
Technical field
The utility model is related to the technical field of hydraulic jack, more specifically, it relates to a kind of for hydraulic jack
Easy opened end cap.
Background technology
At present, the end cap of oil cylinder be mounted in hydraulic jack end be used for fix, the lid of the cylinder body of sealed hydraulic oil cylinder,
It also has the effect of fixed high-pressure oil pipe, and the hydraulic oil in high-pressure oil pipe is entered by end cap in cylinder body, also can
The hydraulic oil in cylinder body is set to be flowed out to by end cap in high-pressure oil pipe.
A kind of end cap of hydraulic jack is disclosed in the patent of Application No. " 201220742328.7 ", hydraulic jack includes
Cylinder body, connecting rod and end cap, the side of end cap have the oil-through-hole being connected with cylinder body, and the side also has for fixed connecting rod
Connecting hole, the opposite side of end cap has the fixing hole being connected with oil-through-hole, and fixing hole is used to connect high-pressure oil pipe, high-pressure oil pipe
First with end cap seal with screwed joint, then it is connected with end cap by welding.This end cap is connected sealing to high-pressure oil pipe by screw thread
Positioned, convenient welding can be prevented effectively from the problem of seepage comes off.But mill type cylinder is due to its own weight weight, with
And its cause its piston rod packing piston seal to be difficult to change after damaging the problems such as installation site, particularly vertically arranged oil
Cylinder, in addition it is also necessary to fallen to level, its maintenance procedures is considerably complicated.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model be provide it is a kind of can be convenient for changing be used for
The Easy opened end cap of hydraulic jack.
To realize above-mentioned technical purpose, the utility model provides following technical scheme：It is a kind of to be used for the easy of hydraulic jack
Tear type end cap, including the end cap body being fixedly connected with cylinder body open, the end cap body side offers annular seal space, the annular seal space
Interior laminating is provided with sealed support for sealed cylinder, and the sealed support offers concentric and confession piston rod is fitted with cylinder body
The positioning chamber passed through, the end cap body side is provided with the back-up ring for fit sealing support, and the back-up ring external diameter is more than close
Support external diameter is sealed, the back-up ring side is provided with by active force so that the retention mechanism that back-up ring is fastened with end cap body.
By using above-mentioned technical proposal, the end cap of heavy and more difficult dismounting is divided into end cap body, sealed support and gear
Circle, the part for making equipment dismount difficulty in maintenance process is changed into simple three parts of dismounting, without whole end cap is removed,
Sealed support and back-up ring need to only be removed, reach the technical difficulty of reduction maintenance and the purpose of heavy degree, achieved
The beneficial effect of easy disassembly.
Preferably, the retention mechanism is included through back-up ring, end is located at the intrinsic fastening bolt of end cap simultaneously.
By using above-mentioned technical proposal, fastening bolt is screwed in end cap body and back-up ring so that back-up ring and end cap sheet
Body is relatively fixed, while coordinating by the screw thread of fastening bolt and end cap body and back-up ring so that the contact area between three
It is larger, the purpose of increasing friction force is reached, the beneficial effect of enhancing steadiness is achieved.
Preferably, the back-up ring top is convexly equipped with the right flange concentric with back-up ring, the end cap body tip is convexly equipped with
With the symmetrically arranged right flange of left flange, the retention mechanism includes setting on the inside of flexible leakage-proof ring, the leakage-proof ring
There is the leakage-proof socket for coating left flange and right flange.
By using above-mentioned technical proposal, because in the hydraulic jack course of work, piston rod is constantly moved, can drive with
The end cap of plunger rod contacts produces slight vibration, and after long-term work, gap will be produced between end cap body and back-up ring, by anti-
Leakage circle closes gap, it is to avoid in-oil cylinder oil leakage, achieves the beneficial effect of enhancing structure sealing.
Preferably, the terminal surface of the sealed support is provided with several thread grooves along sealed support length direction.
By using above-mentioned technical proposal, it is necessary to when dismantling sealed support, screw element be screwed in thread groove, by spiral shell
Line part exerts a force, convenient that sealed support is pulled out into annular seal space, solves sealed support end face smooth, it has not been convenient to the problem of exerting a force, takes
Obtained the beneficial effect of enhancing operation convenience.
Preferably, the end cap body is provided with matching thread groove and with the fastening post of certain elasticity, the back-up ring
Front end face is provided with the binding groove for fastening post laminating sliding.
By using above-mentioned technical proposal, end cap body is inserted after annular seal space, fastening post is screwed in thread groove, now
Back-up ring laminating end cap body is placed again so that fastening post upper end is located in binding groove, flexible after fastening bolt is screwed
Fastening post by after the extruding of binding groove, it may occur that deformation, now fasten post will to binding groove produce reaction force, reach
The beneficial effect of enhancing steadiness.By the cooperation of fastening post and binding groove, it can also play a part of helping back-up ring positioning,
Achieve the auxiliary beneficial effect for improving operation convenience.
It is used for preferably, the positioning chamber sunken inside is provided with laminating in several seal grooves, the seal groove and is provided with
Fasten the sealing gasket of piston rod.
By using above-mentioned technical proposal, the space of piston rod is further limited by sealing gasket, enhancing is achieved
The beneficial effect of structural stability, while sealing gasket is brought into close contact with piston rod surface, can also avoid in-oil cylinder fry dried food ingredients from giving birth to
Leakage, achieves the auxiliary beneficial effect of enhancing structure sealing.
Preferably, the side wall of the sealed support is provided with the inside of positioning strip, the annular seal space along its length direction
Wall is provided with the locating slot for sliding of being fitted for positioning strip.
By using above-mentioned technical proposal, when sealed support is slipped into annular seal space, positioning strip is slipped into locating slot so that
The position of sealed support and end cap body is fixed, and achieves the beneficial effect of enhancing operation convenience.
Preferably, the end cap body top offers fuel feeding into in-oil cylinder oil suction chamber, the end of the oil suction chamber
Hold communication seals chamber.
By using above-mentioned technical proposal, when oil is entered in oil cylinder by oil suction chamber, part oil can be from the end of oil suction chamber
End enters in annular seal space, and the oil in annular seal space can enter in the positioning chamber of connection so that be filled between piston rod and positioning chamber
Oil, has reached the purpose for reducing frictional force between piston rod and positioning chamber, has achieved the beneficial effect of enhancing structure practicality.
In summary, sealed support and back-up ring need to only be removed, reached without whole end cap is removed by the utility model
The technical difficulty of reduction maintenance and the purpose of heavy degree have been arrived, the beneficial effect of easy disassembly is achieved.
Brief description of the drawings
Fig. 1 be the present embodiment in be used for show end cap be connected relation partial sectional view；
Fig. 2 is to be used to show the partial sectional view of end cap concrete structure in the present embodiment.
In figure, 1, end cap body；2nd, sealed support；3rd, back-up ring；4th, cylinder body；41st, piston rod；5th, retention mechanism；11st, seal
Chamber；12nd, oil suction chamber；13rd, locating slot；14th, support ring；21st, positioning chamber；22nd, thread groove；23rd, post is fastened；231st, thread head；24、
Seal groove；25th, sealing gasket；26th, positioning strip；31st, binding groove；51st, fastening bolt；52nd, left flange；53rd, right flange；54th, leakproof
Circle；55th, leakage-proof socket.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
This specific embodiment is only to explain of the present utility model, and it is not to limitation of the present utility model, ability
Field technique personnel can make the modification without creative contribution to the present embodiment as needed after this specification is read, but
As long as all being protected in right of the present utility model by Patent Law.
Embodiment：As shown in figure 1, a kind of Easy opened end cap for hydraulic jack, including the end being fixedly connected with cylinder body 4
The support ring 14 for having annular, support ring 14 and the bolt connection of cylinder body 4 are extended on lid body 1, the lateral wall of end cap body 1.
The columnar side of end cap body 1 depression offers laminating in the annular seal space 11 of circle, annular seal space 11 and is provided with for Seal Oil
Offered in the sealed support 2 of cylinder, cylindric sealed support 2 with cylinder body 4 it is concentric and for piston rod 41 fit through positioning
Chamber 21, the right side of end cap body 1 is provided with the back-up ring 3 for fit sealing support 2, and the external diameter of back-up ring 3 is more than the external diameter of sealed support 2,
The internal diameter of back-up ring 3 is identical with the internal diameter of sealed support 2 simultaneously.
The top of end cap body 1 offers fuel feeding into in-oil cylinder oil suction chamber 12, the end communication seals chamber of oil suction chamber 12
11, when oil is entered in oil cylinder by oil suction chamber 12, part oil can enter in the positioning chamber 21 of connection from annular seal space 11 so that living
Filled with oil between stopper rod 41 and positioning chamber 21, the purpose for reducing frictional force between piston rod 41 and positioning chamber 21 has been reached.
The side of back-up ring 3 is provided with by active force so that the retention mechanism 5 that back-up ring 3 is fastened with end cap body 1, retention mechanism
5 are included through back-up ring 3 while fastening bolt 51 of the end in end cap body 1, the He of end cap body 1 is screwed in by fastening bolt 51
In back-up ring 3 so that back-up ring 3 is relatively fixed with end cap body 1, while the contact area between three is larger, increase friction is reached
The purpose of power.
The left side top of back-up ring 3 is convexly equipped with the right flange 53 concentric with back-up ring 3, and the right end of end cap body 1 is convexly equipped with
With the symmetrically arranged right flange 53 of left flange 52, when back-up ring 3 fits end cap body 1, left flange 52 is closely pasted with right flange 53
Close, retention mechanism 5 includes the leakage-proof ring 54 being made up of elastomeric material, the inner side of leakage-proof ring 54 is provided with for coating the left He of flange 52
The leakage-proof socket 55 of right flange 53, leakage-proof ring 54 is set on left flange 52 and right flange 53, reaches the effect of enhancing sealing.
As shown in Fig. 2 the terminal surface on the right side of sealed support 2 is provided with several thread grooves along the length direction of sealed support 2
22.End cap body 1 is provided with matching thread groove 22 and with the fastening post 23 of certain elasticity, and fastening post 23 is located in thread groove 22
Part be set to the thread head 231 coordinated with thread groove 22, the fastening post 23 for protruding from thread groove 22 is set to cylinder, keeps off
Enclose 3 front end faces and be provided with the binding groove 31 slid for the fastening laminating of post 23, fastening post 23 is certain elastic while machinery using having
The larger elastomeric material of intensity is made.
The sunken inside of positioning chamber 21 is provided with laminating in 3 seal grooves 24, seal groove 24 and is provided with for fastening piston rod 41
Sealing gasket 25, the space of piston rod 41 is further limited by sealing gasket 25, while sealing gasket 25 and the table of piston rod 41
Face is brought into close contact, and can also avoid in-oil cylinder fry dried food ingredients life leakage.
The side wall of sealed support 2 is provided with square positioning strip 26 along its length direction, and the madial wall of annular seal space 11 is set
There is the locating slot 13 for sliding of being fitted for positioning strip 26, when sealed support 2 is slipped into annular seal space 11, positioning strip 26 is slipped into locating slot
In 13 so that the position of sealed support 2 and end cap body 1 is fixed.
Assembling process：The end cap of heavy and more difficult dismounting is divided into end cap body 1, sealed support 2 and back-up ring 3, makes equipment
Dismounted in maintenance process difficulty part be changed into dismounting simple mono functional module, without whole end cap is removed, only need by
Sealed support 2 is removed with back-up ring 3, has reached the technical difficulty of reduction maintenance and the purpose of heavy degree.
When assembling end cap, end cap body 1 is first inserted into the right end of cylinder body 4 so that support ring 14 is pasted with the end face of cylinder body 4
Close, now by support ring 14 and the bolt connection of cylinder body 4, reach the purpose of fastening end cap body 1.Now again by positioning strip 26 with
The cooperation of locating slot 13 accurately slips into sealed support 2 in annular seal space 11, now again screws in thread groove 22 fastening post 23, leads to
The cooperation of fastening post 23 and binding groove 31 is crossed, the right side of gluing, sealing support 2 is placed exactly by back-up ring 3, now again will fastening
Bolt 51 is screwed in back-up ring 3 and end cap body 1 so that fastening post 23 upper end is located in binding groove 31, and fastening bolt 51 is screwed
Afterwards, after extruding of the flexible fastening post 23 by binding groove 31, it may occur that deformation, now fastening post 23 will be to binding groove
31 produce reaction force, so as to strengthen the fastening force between back-up ring 3 and sealed support 2.Now leakage-proof ring 54 is enclosed on again left convex
On edge 52 and right flange 53, overall assembling is just completed.
When dismounting end cap is repaired, outward winding fastening bolt 51 and remove leakage-proof ring 54, you can pull down back-up ring 3, now
The fastening post 23 in thread groove 22 is removed again, screw element thread groove 22 is screwed in into, by being exerted a force to screw element, so that easily
Sealed support 2 is taken out.
Claims (8)
1. a kind of Easy opened end cap for hydraulic jack, including the end cap body (1) being fixedly connected with cylinder body (4), its feature
It is：End cap body (1) side offers laminating in annular seal space (11), the annular seal space (11) and is provided with for Seal Oil
The sealed support (2) of cylinder, the sealed support (2) offer with cylinder body (4) it is concentric and for piston rod (41) fit through determine
Position chamber (21), end cap body (1) side is provided with the back-up ring (3) for fit sealing support (2), and the back-up ring (3) is outside
Footpath is more than sealed support (2) external diameter, and back-up ring (3) side is provided with by active force so that back-up ring (3) and end cap body (1)
The retention mechanism (5) of fastening.
2. the Easy opened end cap according to claim 1 for hydraulic jack, it is characterised in that：The retention mechanism (5)
Including through back-up ring (3) and meanwhile end be located at end cap body (1) in fastening bolt (51).
3. the Easy opened end cap according to claim 2 for hydraulic jack, it is characterised in that：Back-up ring (3) top
The right flange (53) concentric with back-up ring (3) is convexly equipped with, end cap body (1) end is convexly equipped with to be symmetrical arranged with left flange (52)
Right flange (53), the retention mechanism (5) includes being provided with the inside of flexible leakage-proof ring (54), the leakage-proof ring (54)
Leakage-proof socket (55) for coating left flange (52) and right flange (53).
4. the Easy opened end cap according to claim 1 for hydraulic jack, it is characterised in that：The sealed support (2)
Terminal surface be provided with several thread grooves (22) along sealed support (2) length direction.
5. the Easy opened end cap according to claim 4 for hydraulic jack, it is characterised in that：The end cap body (1)
It is provided with matching thread groove (22) and with the fastening post (23) of certain elasticity, back-up ring (3) front end face is provided with for fastening
The binding groove (31) of post (23) laminating sliding.
6. the Easy opened end cap according to claim 1 for hydraulic jack, it is characterised in that：In the positioning chamber (21)
Depression is provided with laminating in several seal grooves (24), the seal groove (24) and is provided with the sealing gasket for fastening piston rod (41)
(25)。
7. the Easy opened end cap according to claim 1 for hydraulic jack, it is characterised in that：The sealed support (2)
Side wall its length direction is provided with positioning strip (26), annular seal space (11) madial wall is provided with for positioning strip (26) patch
Close the locating slot (13) of sliding.
8. the Easy opened end cap according to claim 1 for hydraulic jack, it is characterised in that：The end cap body (1)
Top offers fuel feeding into in-oil cylinder oil suction chamber (12), the end communication seals chamber (11) of the oil suction chamber (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720211625.1U CN206555209U (en) | 2017-03-06 | 2017-03-06 | Easy opened end cap for hydraulic jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720211625.1U CN206555209U (en) | 2017-03-06 | 2017-03-06 | Easy opened end cap for hydraulic jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206555209U true CN206555209U (en) | 2017-10-13 |
Family
ID=60363521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720211625.1U Expired - Fee Related CN206555209U (en) | 2017-03-06 | 2017-03-06 | Easy opened end cap for hydraulic jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206555209U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357220A (en) * | 2021-06-01 | 2021-09-07 | 内蒙古北方重工业集团有限公司 | Core rod oil cylinder of vertical extruder and piston rod protection device thereof |
-
2017
- 2017-03-06 CN CN201720211625.1U patent/CN206555209U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113357220A (en) * | 2021-06-01 | 2021-09-07 | 内蒙古北方重工业集团有限公司 | Core rod oil cylinder of vertical extruder and piston rod protection device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171013 Termination date: 20200306 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |